15136217472 has 32 divisors (see below), whose sum is σ = 40205578680. Its totient is φ = 5045405696.

The previous prime is 15136217441. The next prime is 15136217497. The reversal of 15136217472 is 27471263151.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 15136217472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19708233 + ... + 19709000.

Almost surely, 2^15136217472 is an apocalyptic number.

15136217472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15136217472 is an abundant number, since it is smaller than the sum of its proper divisors (25069361208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15136217472 is an equidigital number, since it uses as much as digits as its factorization.

15136217472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39417250 (or 39417238 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The spelling of 15136217472 in words is "fifteen billion, one hundred thirty-six million, two hundred seventeen thousand, four hundred seventy-two".